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SID: update-grub ---Warning: os-prober will not be executed to detect other bootable partitions.
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Peter Ehlert
Dec 9, 2021, 11:30:04 AM12/9/21
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the full error message at the end of update-grub:
Warning: os-prober will not be executed to detect other bootable partitions.
Systems on them will not be added to the GRUB boot configuration.
Check GRUB_DISABLE_OS_PROBER documentation entry.
Question: why would this desirable?
it's totally new to me.
Back story:
I just upgraded a Bullseye install to Sid.
this is a multi-boot machine, my daily driver is Bullseye.
after reboot my GRUB had only one entry
I was able to get it back (thanks to Google)
edit /etc/default/grub
add GRUB_DISABLE_OS_PROBER=false
saved then ran grub-install /dev/sd(foo) && update-grub
Warning: os-prober will not be executed to detect other bootable partitions.
Systems on them will not be added to the GRUB boot configuration.
Check GRUB_DISABLE_OS_PROBER documentation entry.
Question: why would this desirable?
it's totally new to me.
Back story:
I just upgraded a Bullseye install to Sid.
this is a multi-boot machine, my daily driver is Bullseye.
after reboot my GRUB had only one entry
I was able to get it back (thanks to Google)
edit /etc/default/grub
add GRUB_DISABLE_OS_PROBER=false
saved then ran grub-install /dev/sd(foo) && update-grub
David Wright
Dec 9, 2021, 2:20:05 PM12/9/21
to
On Thu 09 Dec 2021 at 08:28:37 (-0800), Peter Ehlert wrote:
> the full error message at the end of update-grub:
>
> Warning: os-prober will not be executed to detect other bootable partitions.
> Systems on them will not be added to the GRUB boot configuration.
> Check GRUB_DISABLE_OS_PROBER documentation entry.
>
> Question: why would this desirable?
> it's totally new to me.
AIUI a potential security risk. I don't know whether there are
> the full error message at the end of update-grub:
>
> Warning: os-prober will not be executed to detect other bootable partitions.
> Systems on them will not be added to the GRUB boot configuration.
> Check GRUB_DISABLE_OS_PROBER documentation entry.
>
> Question: why would this desirable?
> it's totally new to me.
plans to mitigate whatever the risk is.
I imagine there may be someone crafting a paragraph for the
next Release Notes.
> Back story:
> I just upgraded a Bullseye install to Sid.
> this is a multi-boot machine, my daily driver is Bullseye.
> after reboot my GRUB had only one entry
>
> I was able to get it back (thanks to Google)
> edit /etc/default/grub
> add GRUB_DISABLE_OS_PROBER=false
>
> saved then ran grub-install /dev/sd(foo) && update-grub
David.
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